0x7b2d3c8c00728d9659a823b9d210f44c84cfd4c58a30505b831d1bb5c3bfc596

How to verify this batch yourself

Take any stamp's content hash, walk the merkle proof in its certificate to recompute the root, then call timestamps(root) on the BA Stamper contract on any Polygon full node. The block timestamp returned is the on-chain proof — no trust in BA Stamp required.